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Electro-Process
and High Power Conversion
Measurement, Control & Protection |
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Applications : Zinc
Over 80% of the zinc produced today utilizes an electrolytic process. After ore is mined, milled, concentrated and roasted, the resulting powder is leached into a solution. This solution is then electrolysed in a cell fitted with aluminum cathodes to extract the zinc. Refined zinc is deposited on the aluminum cathode which is subsequently removed and stripped. Recent upgrades to zinc smelters have resulted in significant improvements in current efficiency and modern Zinc process technology utilizes current approaching 300kA.
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Process Applications
High accuracy measurement of voltage and current is needed to…
Provide current data to process systems for optimum control
Detect unexpected changes in process efficiency
Accurately evaluate impact of intended / trial process changes
Objectively compare multiple process lines
Improve visibility of process energy utilization and costs
Links to applicable DynAmp product pages :
| LKCO | New high accuracy total process current measurement utilizing fiber optic sensing technology |
| LKP | for high accuracy total process current measurement |
| Upgrades | to improve performance of existing LKP, CM, FM & CXM systems |
Power Conversion Applications
The Zinc refining process is most efficient with highly stable and reliable from power conversion equipment. Current instability leads to numerous process efficiency problems thereby increasing the costs. Such instability can cause process cell damage and even endanger staff and facility.
Highly dependable and responsive measurement systems are needed to
Provide current data to rectifier control systems for optimum performance and stability
Provide overall multi-rectifier balance indication
Provide a backup ‘totalized’ current measurement signal for total mainline current
Sense power conversion equipment failure modes quickly to protect process, equipment and personnel.
Analyze rectifiers condition to determine maintenance requirements as well as acceptance testing of new/replacement rectifiers
Links to applicable DynAmp product pages :
| LKAT | for rectifier measurement, control and balance with over/reverse current protection |
| LKP | for high accuracy rectifier measurement control and balance |
| Upgrades | to improve performance of existing LKP, CM, FM & CXM systems |
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| BCMR | to protect rectifiers from over/reverse rectifier events |
| BRP | New basic reverse current protection for rectifiers |
| RCEM | for internal rectifier analysis and condition monitoring |
| Clamp-On | for portable measurement |
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DynAmp, LLC
3735 Gantz Road
Grove City, OH, 43123, USA
Phone: (+1) 614-871-6900
Fax: (+1) 614-871-6910
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DynAmp Europe
Chemin des Aulx 8,
1228 Plan-les-Ouates, Geneva, Switzerland
Phone: (+41) 22 706 1446
Fax: (+41) 22 706 1311 |
Copyright © 2009 DynAmp, LLC
All Rights Reserved
help@dynamp.com
( formerly Halmar and LEM DynAmp )
To visit LEM Group, click here 
Updated: 1 September 2009 |
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